SUBSIDING STORM: A geomagnetic storm that began on Sept. 3rd when a coronal mass ejection (CME) hit Earth's magnetic field is fitfully subsiding. The impact at 1200 UT (5 am PDT) induced significant ground currents in the soil of northern Scandinavia and sparked bright auroras around the Arctic Circle.

SUNSPOT AR1564: The next strong flare could be just around the corner. Sunspot AR1564 is growing rapidly and has developed a 'beta-gamma' magnetic field that harbors energy for M-class flares. NASA's Solar Dynamics Observatory took this picture of the active region during the early hours of Sept. 4th:

NOAA forecasters estimate a 40% chance of M-flares during the next 24 hours. Any eruptions will likely be Earth-directed as the active region is turning toward our planet. www.spaceweather.com